Padlock



UNITED- STATES PATENT OFFICE.

WILLIAM \V. SHALLUS, OF LANCASTER, PENNSYLVANIA.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 257,086, dated April25, 1852.

Application filed February 28, 1882. (ModeL) To all whom it may concern:

Be it known that I, WILLIAM W. SIIALLUS, of Lancaster, in the county ofLancaster, and in the State of Pennsylvania, have invented certain newand useful Improvements in Padlocks; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, making a part of this specification.

This invention relates to certain improvements in padlocks; and it hasfor its objects to prevent the shackle or hasp from being entirelywithdrawn from the casing in unlocking, to provide an improved socketfor the end of thekey, and to provide certain means whereby the tumblersmay be fitted in the lock, as more fully hereinafter specified. These objects I attain by the means illustrated in the accompanying drawings, inwhich Figure 1 indicates a vertical sectional view of my improved lookFig. 2, a horizontal sectional view on the line a a; of Fig. 1, Fig. 3,an elevation of the shackle or hasp detached; Fig. 4, a detached view ofthe key, and Fig. 5 a detached view of the plate having the socket forthe key detached.

The letter A indicates the casing or shell of the lock, which iselliptical in cross-section. The said casing or shell on the inside isprovided with three vertical ribs, 13, instead of four, as usual, inorder to permit the hook O at one corner of the plate D to enter thevertical groove E in the long shank of the hasp or shackle, and at thesame time prevent it from turning. The said plate is provided with fourlugs or projections, F, which serve to keep the tumbler G, which restsupon the plate, in proper position. The said tumbler is provided on itsface adjacent to the plate I) with a central projection,H, which restsagainst theface of the plate I), and on its opposite face with a boss,I, having a socket, K, for the end of the key.

The letter L indicates the additional tumblers, which are similar inshape to the tum? bler G, with the exception that the central projectionis omitted. Each is provided with a rectangular opening, through whichthe key may pass, and they are separated by means of plates M, similarin shape to the plate D, with the exception of the hook. The said platesare provided with lugs, which hold the tumblers in position to keep thecentral apertures in proper relative positions. The tumblers and platesare confined by means of a spring, P, which is held by a plate, R,provided with lugs S, which embrace the boss T on the inside of thecover of the casing to hold the said plate in place, so that its centralaperture will be in line with the key-hole. The shanks of the shackle orbolt are provided with wards U for the tumblers, as indicated, and thelong shank near its end is provided with an annular groove, V, fromwhich extends the vertical groove on the said shank in such manner as topermit the shank to slide on the book 0,

as the shackle is withdrawn in unlocking, until the hook falls in theannular groove, when the longitudinal movement of the shank will bearrested, and the shackle will be held or swiveled, so that it can befreely turned in either direction.

By means of the socket-tumbler provided with the central projectionprovision is made for readily fitting the parts in the lock, which canbedone by filing 0r flattening down the projection.

By means of the socket the usual opening in the end of the key and thepin in the easing, forming a bearing therefor, may be dispensed with,materially reducing the cost of the lock.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

In combination with the casing A, provided with grooves B on itsinterior, the shackle having a longitudinal groove, E, and annulargroove V, plate D, having hook O, tumbler Gr, provided with a boss, H,and recess I, tumblers L, adapted to work into the wards of the shackle,the intervening plates, spring P, and boss T at the key-hole, allarranged to operate substantially in the manner and for the purposesspecified.

In testimony whereof I affix my signature, in presence of two witnesses,this 2d day of February, 1882.

VILLIAM W. SHALLUS.

Witnesses: I

ISRAEL L. LANDIS JOHN C. SoHUrTE.

